Alloy 20 Compression Tube Fitting

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Alloy 20 Tube Fittings

Dimensions Standard of Alloy 20 Tube Fittings


OMS HYDRAULICS NPT Threads Dimensions
NPT THREAD
DASH
MALE THREAD
FEMALE
SIZE & PITCH
SIZE
MINOR OD
THREAD ID
inch – TPI
mm
inch
mm
inch
1/8 – 27
-2
9,9
0.39
8,4
0.33
1/4 – 18
-4
13,2
0.52
11,2
0.44
3/8 – 18
-06
16,6
0.65
14,7
0.58
1/2 – 14
-8
20,6
0.81
17,8
0.7
3/4 – 14
-12
26,0
1.02
23,4
0.92
1 – 11.1/2
-16
32,5
1.28
29,5
1.16
1.1/4 – 11.1/2
-20
41,2
1.62
38,1
1.5
1.1/2 – 11.1/2
-24
47,3
1.86
43,9
1.73
2 – 11.1/2
-32
59,3
2.33
56,4
2.22
2.1/2 – 8
-40
71,5
2.82
69,1
2.72
3 – 8 -48 87,3 3.44 84,8 3.34

OMS HYDRAULICS BSPT & BSPP Threads Dimensions
BSPT & BSPP
DASH
BSPT MALE
BSPP MALE
BSPT FEMALE
BSPP FEMALE
SIZE & PITCH
SIZE
THREAD OD
THREAD OD
THREAD ID
THREAD ID
inch – TPI
mm
inch
mm
inch
mm
inch
mm
inch
1/8 – 28
-2
9,5
0.37
9,6
0.38
8,4
0.33
8,6
0.34
1/4 – 19
-4
12,8
0.5
13,0
0.51
11,2
0.44
11,9
0.47
3/8 – 19
-6
16,3
0.64
16,5
0.65
14,7
0.59
15,2
0.6
1/2 – 14
-8
20,4
0.8
20,8
0.82
18,3
0.72
19,1
0.75
5/8 – 14
-10
22,5
0.89
22,8
0.9
20,6
0.81
20,8
0.82
3/4 – 14
-12
25,9
1.02
26,3
1.04
23,9
0.94
24,6
0.97
1 – 11
-16
32,6
1.28
33,1
1.3
29,7
1.17
30,7
1.21
1.1/4 – 11
-20
41,1
1.62
41,8
1.64
38,6
1.52
39,4
1.55
1.1/2 – 11
-24
47,0
1.85
47,7
1.88
44,5
1.75
45,5
1.79
2(11)
-32
58,6
2.31
59,5
2.34
56,4
2.22
57,4
2.26
2.1/2 – 11
-40
74,1
2.92
75,1
2.95
71,9
2.83
72,6
2.86
3 – 11
-48
86,6
3.41
87,9
3.46
84,6
3.33
85,4
3.36

 

Material Specification of Alloy 20 UNS N08020 Ferrule Fittings

BRAND NAME
OMS HYDRAULICS
Equivalent To
SWAGELOK, PARKER, DK-LOK, HOKE
Material Specification as per ASME/ASTM
ASTM B564/564M and ASME SB564/564M Alloy 20
Types
Tube to Union, Tube to Male, Tube to Female, Instrument Pipe Fittings, Accessories
Sizes
1/8’’ to 2’’ and 3mm to 50mm
Ends
Threaded, Welding, JIC
Pressure Rating
1000 Psi, 3000 Psi, 6000 Psi, 10000 Psi
Threads
NPT , BSPT, BSPP

 

Chemical Composition Standard Of Alloy 20 Compression Fittings

Grade % Ni Cr Mo Cu Nb C Mn Si P S
Alloy 20 Min. 32 19 2 3 0.1 1
Max. 38 21 3 4 0.3 0.02 2 0.7 0.02 0.005

Mechanical Properties Of 2.4660 Tube Fittings

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Alloy 20 8.1 g/cm3 1443 °C (2430 °F) Psi – 80000 , MPa – 551 Psi – 35000 , MPa – 241 30 %

AISI Alloy 20 Compression Tube Fittings Equivalent

STANDARD UNS WERKSTOFF NR. AFNOR EN JIS BS GOST
Alloy 20 N08020 2.4660 Z2NCUD31-20AZ NiCr20CuMo - - -

 

Do You Know Features of Alloy 20 Tube Fittings ?

  1. Excellent corrosion resistance to high-purity water
  2. Resistance to chloride induced stress-corrosion cracking
  3. Good oxidation resistance at high temperatures
  4. Good weldability under a wide range of temperatures
  5. High caustic corrosion resistance

 

Instrumentation Tube Fittings